[mythtv] Running with no sound card

[Roger James]

> > allows the open to fail silently for PVR-350 users.  This should help
> > Roger's situation, but I'm not at all certain that it's the best way to
> > solve this problem.
> 
> It's designed so that pvr-350 uses can use the internal volume controls.
> 

I apologise if I am being somewhat stupid on this, but..

What do you mean by this statement?

Is it mandatory to have some kind of sound card defined even it is a dummy
one?

What are the "internal volume controls"?

Roger